I love this post - and agree completely with your conclusion. It depends on where you are in the balance between creative and ability to concentrate. I'm like you, heaps of creativity and hardly any of the latter. So stimulants are a huge benefit to me.
It does seem to me that there is some sort of institutional failure - because there are so many initiatives and organizations that fail or at least don't accomplish very much for lack of good ideas. And yet there are various sources of good ideas around, with a surplus of such ideas built up...but they don't get transferred....